A Guide to the ABS Wheel Speed Sensor for the 2017 GMC Acadia Limited
Understanding why your ABS, StabiliTrak, and Traction Control lights are on and how to choose the right replacement sensor.
- A bad ABS sensor will trigger ABS, StabiliTrak, and Traction Control warnings simultaneously on your dash.
- Before replacing, inspect and clean the wheel bearing's magnetic ring for debris, as per TSB #17-NA-047, which can solve the issue.
- For reliability, choose premium brands like ACDelco (OE/Gold), Delphi, or NGK/NTK.
- Ensure you are buying parts for the 'Acadia Limited' model, as parts for the standard 2017 Acadia are different.
Is Your Acadia Limited Showing ABS and StabiliTrak Warnings?
If you own a 2017 GMC Acadia Limited, you're driving a model that is mechanically the same as the first-generation (2007-2016) Acadia. A very common issue on this platform is the failure of an ABS wheel speed sensor. When this happens, you will almost always see a trio of warning lights appear on your dashboard: the ABS light, a "Service StabiliTrak" message, and a "Traction Control Off" light. This happens because all three safety systems depend on the information from the wheel speed sensors to work correctly. When one sensor fails, the vehicle's computer disables all three systems as a precaution.
🎬 Watch: How to fix the Service StabiliTrak warning lights.Symptoms of a Failing ABS Sensor
Besides the warning lights, you might notice other symptoms. During normal braking, the brake pedal might pulse or feel like the ABS is activating for no reason. In some rare cases, the speedometer may act erratically or stop working altogether. It's important to get the vehicle scanned for trouble codes to confirm which wheel sensor has failed.
Check for Debris Before Replacing
General Motors issued a Technical Service Bulletin (TSB #17-NA-047) for the Acadia platform. It notes that trouble codes for a wheel speed sensor (C0035, C0040, C0045, C0050) can be triggered by metallic debris stuck to the magnetic encoder ring on the wheel bearing hub. Before you buy a new sensor, it's worth removing the old one and inspecting the hub for any debris. Cleaning this area thoroughly with a brake cleaner and a rag could fix the problem without needing a new part.
Choosing the Right Aftermarket ABS Sensor
When shopping for a new sensor, you'll find several brands. They generally fall into three quality tiers. For a critical safety part like this, choosing a quality component is important for long-term reliability.
Tier 1: OEM & Premium Aftermarket
These brands are either the original supplier to GM or are known for meeting or exceeding OEM standards. They are the most reliable choice.
- ACDelco (GM Genuine OE or Gold/Professional): ACDelco is GM's official parts brand. Their "GM Original Equipment" is the exact part your vehicle was built with. The "Gold" (formerly "Professional") line is their top-tier aftermarket offering, manufactured to OE specifications for fit and performance.
- Delphi: Delphi is a major OEM manufacturer for many car brands, including GM. Their parts are widely trusted by professional mechanics and are considered equivalent to OEM quality.
- NGK / NTK: While famous for spark plugs, NGK's sensor division (NTK) produces high-quality sensors that are well-regarded in the industry.
Tier 2: Quality Aftermarket
These brands offer a good balance of price and quality and are a dependable choice for most repairs.
- Standard Ignition (SMP): A long-standing aftermarket brand that produces reliable sensors and other electronic components.
- Dorman: Dorman is known for making a huge variety of aftermarket parts. While their quality can sometimes be inconsistent according to user forums, they often provide a lifetime warranty and are readily available.
Tier 3: Economy Brands
These brands focus on being the most affordable option. They can be a good choice for a budget-focused repair, but may not have the same long-term durability as premium brands.
- Holstein: An aftermarket brand offering a cost-effective alternative with a 3-year/36,000-mile warranty.
- Walker Products: Another brand focused on affordability, producing a wide range of sensors.
- True Tech: Typically a store-brand or entry-level option.
A Note on ACDelco Tiers
Be aware that ACDelco also offers a budget line called "Silver" (formerly "Advantage"). These parts are designed to compete on price with other economy brands and may not have the same materials or longevity as the Gold/Professional or Genuine GM parts.
Aftermarket ABS Sensor Cost for 2017 Acadia Limited
| Part Tier | Brand Examples | Price Range (Per Sensor) |
|---|---|---|
| Premium (OEM/OES) | ACDelco OE/Gold, Delphi | $40 - $75 |
| Quality Aftermarket | Standard (SMP), NGK, Dorman | $45 - $65 |
| Economy | Holstein, Walker, True Tech | $41 - $55 |
Frequently Asked Questions
Is it difficult to replace an ABS sensor myself?
No, this is a DIY-friendly job for someone with basic mechanic's tools. The process involves safely jacking up the vehicle, removing the wheel, undoing one bolt holding the sensor to the wheel hub, and tracing the wire to its plug to disconnect it. The most common issue is the sensor being seized in the hub due to rust, which may require gentle persuasion to remove.
🎬 See this walkthrough for replacing a front wheel speed sensor.Do I need to replace the sensors in pairs?
No. You only need to replace the specific sensor that has failed. A proper diagnosis with an OBD-II scanner that can read ABS codes will tell you exactly which wheel sensor is causing the problem (e.g., C0040 for Right Front).
What is the difference between the front and rear sensors?
The front and rear sensors for the Acadia Limited are different parts. They have different shapes and wire harness lengths. Make sure you order the correct sensor for the specific location that needs replacement.
🎬 Watch: Step-by-step guide for replacing a rear ABS sensor.Will the warning lights go off by themselves after I replace the sensor?
Sometimes the lights will turn off after a few drive cycles once the computer confirms the new sensor is working. However, the fastest and most reliable way to clear the lights and stored trouble codes is to use an OBD-II scanner to erase them after the repair is complete.
Helpful Videos
Technical Specifications
OEM Part Numbers: 22739727 (Front) 10390115 (Front) 22951116 (Rear)
The 2017 Acadia Limited uses a 2-pin magnetic hall-effect sensor. The front and rear sensors are physically different and are not interchangeable. The rear sensor (22951116) is the same for both the left and right sides.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- GMC Acadia Limited:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Acadia Limited Showing ABS and StabiliTrak Warnings?
- Symptoms of a Failing ABS Sensor
- Check for Debris Before Replacing
- Choosing the Right Aftermarket ABS Sensor
- Tier 1: OEM & Premium Aftermarket
- Tier 2: Quality Aftermarket
- Tier 3: Economy Brands
- A Note on ACDelco Tiers
- Aftermarket ABS Sensor Cost for 2017 Acadia Limited
- Frequently Asked Questions
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